Ash-sifter



G. H.PETERS AND R. E. SHOARS.

ASH SIFTER.'

APPLICATION FILED NOV. IB, 1918- Ptendsept. 20,1921;

Fi/.gl 3a UNITED STATES PATENT OFFICE,

GUSTAV H. PETERS AND RAYMOND E. SHQARS, OF MILWAUKEE, 'WISCONSINhAsH-smrnreh i Specification of Letters Patent. VPatented Sept. 20, 1921.

Application led'November 18, 1918. Serial No. 263,006.

To all whom it may concern: Y

Be it .known4 that uwe, GUSTAV H. PETERS, a subject of Germany, andRAYMOND E. SHoARs, a citizen of the United- States, and residents ofMilwaukee, in the county of Milwaukee and State of Wisconsin, haveinvented new and useful Improvements in Ash- Sifters, of which thefollowing is a description,.reference being had to the accompanyingdrawings which are a part of this speciiication.

The invention relates to ash sifters and is fully described andexplained in the following specification and shown in the accompanyingdrawings in which:

Figure l is a vertical sectional view through the device embod ing theinvention taken on the line 1-1 of lyig. 2.

Fig. 2 is a plan view, parts being broken away and parts being shown insection;

Fig. 3 is a section taken on the line 3--3 of Fig. 1.

In the drawings, the' numeral 4 designates a feeding hopper havinginclined walls 5 and a bottom opening 6 which is in communication withaninclined chute 7 having side walls 8, top wall 9 and an open bottomfor a greater portion of its length covered by a screen 10 removablymounted on inturned flanges 8 on the side walls 8, the end of the chuteterminating in Yan enlarged spout or discharge opening 11.

The bottom opening 6 is normally closed by means of a flat plate valve12 hingedly connected at one side to one of the inclined walls 5 andnormally held in closing positionby means of an arm 13 carrying a weight14 at its outer end. Y

Hingedly secured to each side wall 8 of the chute 7 by a hinge plate 15is a side plate 15 and one end of each plate is removably secured to aninclined end wall 16 by means of a bolt 17. An end plate 18 is hingedlysecured to the upper end wall 19 of the chute 7 andhas flanged sides 18removably secured to the side plates 15 by bolts 20. The plates 15 and18 and end wall 16 form a delivery hopper 21.

The plate 18 is provided with an outwardly extending flange 22 and theend wall 16 with a similar flange 23 so that an ashk 11 are providedwith flanges 27 similar to the flanges 22 and 23 so that a coalreceptacle 28 having flanged guideways 29, similar to the guideways 25,may slidably engage the flanges 27 to removably connect the receptacle28 to the endof the spout 11. The device is held off the floor or othersupport so that the coal and ash receptacles maybe readily removed bymeans of legs 30 and 31. The legs 3() are pivotally secured at theirLipper' ends to the end walls of the hopper 4 by bolts 30 so that theymay be folded up against the side of the chute 7 when not in luse andwhen in use they are held in upright position by c means of hooked lugs32 secured to the end plate 18 and engageable with locking bolts 33which are mounted in slots 34 in the legs 30. The legs-31 are pivotallysecured to the side walls 8 by bolts 35 so that' they may be folded upagainst the side of the chute when not in use and when in use they areheld in upright position vby means of hooked lugs 36 secured to saidwalls 8 and engageable with locking bolts 37 which are mounted in slots38 in the legs 31.

With the construction above described the material to be sifted isdumped into the feeding hopper 4 and passes down through the opening 6and due to its weight opens the valve 12.V It then rolls or slides alongthe screened bottom of the chute 7 and the finer soy screen 10 into thehopper 21 and receptacle 24 while the larger particles such as theunburnt coal pass down the chute 7 through the spout 11 and into vthereceptacle 28.

' The plate valve 12 and tight joints between the various parts of thedevice prevent the escape of dust from the device.

Owing to the fact that the receptacles 24 and 28 are removably securedto the device and that the side plates 15, end plate 18 and legs 30 and31 are provided with hinged joints, the device may be folded up intocompact form for shipping or storing.

What we claim as our invention is:

1.'A closed ash sifter, comprising an inclined casing having foldableside and end walls and an open bottom portion, end portions of thecasing also being open, an inclined screen mounted in the casing, agated hopper connected to the casing wall forming one ofthe endopenings, a cinder receptacle removably connected to the casing wallform- -ing the otherl end opening, an ash'receptacle removably connectedto the casing and closingthe bottom opening, and foldable` legs forsupporting the casing and the receptacles.

2. A closed ash sifter, comprising an inclned casingV having foldableside and end Walls and an open bottom portion, end portions of thecasing also being open, a hopper mounted on the upper openl end of theeasing and having a gate for normally closing the adjacent casing endopening,l a cinder receptacle removably connected to the lower end ofthe casing and closing the lower end opening7 an ash receptacleremovably connected to the casing and closingV the bottom opening,supporting legspivotally connected to the opposite sides of the casing,and` means for locking the legs in supporting position.

In testimony whereof, We affix our signatures. v

GUSTAV H. PETERS. RAYMOND E. SHOARS.

